Finding the Fourth Proportional to 1,987.82, 2,968.34 and 1,623.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,987.82 : 2,968.34 = 1,623.32 : x
2. Step 2: Convert to fraction form
   1,987.82/2,968.34 = 1,623.32/x
3. Step 3: Cross multiply
   1,987.82x = 2,968.34 × 1,623.32
4. Step 4: Simplify right side
   1,987.82x = 4,818,565.69
5. Step 5: Solve for x
   x = 4,818,565.69/1,987.82
6. Step 6: Final answer
   x = 2,424.05